The Cressi Big Eyes introduced a number of new ideas to divers including inverted drop shape lenses and raked frame and skirt. These two design features help to massively improve the all round field of vision by up to 30%. The inverted drop shape improves lower visibility, allowing divers and snorkellers to look down to check kit or points of interest without the need to tilt the head. The improved is increased further by pre-tilting the mask so that it is anglesd inwards towards the bottom of the mask. The added benefit of this is that this design also helps to reduce the internal volume of the mask.

The soft, full silicone skirt incorporates a second lip on the inside of the skirt which increases the sealing surface that makes contact with the skin, helping to prevent water from entering the mask. A tiliting quick adjustment strap buckle is fitted either side of the mask to aid strap adjustment and fitting position to suit the user.